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Last night I tested my nitrates coming from the effluent and they are still very high. i'm using the tetra nitrate test and the color is still pretty red (it will be yellow at zero). This Sunday will be 4 weeks since it's been set up, so i am a little baffled. The few possible problems i can come up with are that i had the drip rate too high up until about a week ago (it's now one drip per second)...the other problem may be that my phosphates are too high - i need new charges of rowaphos in my 3 phosban reactors. hopefully once i change those, the phosphates will drop and then in turn the nitrates will also drop. Any other thoughts or possibilities?
thanks!
Andy
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